Tooth-rest.



H. R. ISLER.

TOOTH REST.

APPLICATION FILED MN26| 1917.

Pmemed Dec. 11, r1917.

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".llGOTH-REST.

Specification of Letters Patent, llfilgitmtd Da@ 11, `191%.

Application tiled January" 26, i917. Serial No. ltto.

To @ZZ whom it may concern:

lie it known that l, HERMAN lt. lemen, a citizen otl the United States, and aV resident ot' lli'orwood. in the county of Hamilton `and State oit tibio, have invented certain new and useful improvements in Tooth-Rests. ot which the followingl is a full, clear, and enact description, reference being had to the accompanying drawings, forming a part ot this specification.

lily invention relates to tooth-rests whereby the successive teeth oi a cutter may be so positioned with reference to a grinding wheel that the same may be uniformly ground. Q

The objects oi my invention are iirst, to provide a tooth-rest of the character mentioned, having a non-resilient or rigid blade adapted to serve as a rest tor the successive teeth oi" a cutter and so mounted upon a resilient support as to permit the iree rota tion ot the cutter to bring the successive teeth in position on said blade; second, to provide a device of such description ol simple, inexpensive and eiticient construction.

@ther objects of my invention will be api` parent to those skilled in the art to which the same appertains, trom the following description thereof, taken in connection with the accompanying drawings.

ln the drawings:

Figure l is a central vertical section of my new tooth-rest, parts being shown in elevation.

llig. 2 is a. front elevation of said invention, a portion being broken away to show the resilient mounting tor the blade.

lig. 3 is a plan ot' said tooth-rest.

l? ig. l is a side view oi the end of a modilied term oi' the tooth rest.

rlhe numeral l indicates an arm, the said arm being arranged to he supported in any suitable manner upon the bed or other portion oi a grinding machine, the said arm il being arranged, as will be understood, to move in various directions in accordance with the construction heretofore in use. .ildjustably mounted in an aperture in the head 2 ot the arm l is a second arm 3, the anis ot said arm 3 being vertical to `the axis ot the arm l. A set screw 4 secures the arm 3 in any desired position.

'lhe arm is bored as clearly shown in l of the drawings, the upper portion oi said bore being ot larger diameter than the lower portion thereof. i i

rl`he numeral 5 indicates the resilient sup port for the rigid `blade ol' my tooth-rest. The said supportis otgenerally cylindrical torni, but provided withan intermediate portion G which is suitably shapedand tempered to `givethe required resilienceto the supporto. @ne end ofsaid support is se- A cured by arivet 'i' in the small bore at the lower end ot the arm 3, and the saidsuplport is so shaped, during the forming` of the resilient portion G, that the upper end thereof inclineg toward one side of the larger A bore at the upperfend ot said arm 3. The tree end ci the support 5 in the ormof the device illustrated, is provided with ahead 8 which has a transverse threaded perforation 'for a screw 9 by means of which the rigid blade 10 of the device is secured to the supporhbut it will be understood that said endv may `itself be extended and shaped to form `the rigid blade as illustrated in Fig. l of the drawings. The upper end oi the arm. El isprovidedwithguides `ill between which the lower portion of the head 8 oi the support reciprocates; the said guides being provided to prevent lateral motion of the head 8 and thereby olf the blade l0.

From the foregoing description, the nature and spirit of my invention will be ap parent to those skilled in the art, and the various modifications within the scope of said invention wherein the principles thereof may be embodied, will be readily suggested.

lllaving thus described my invention, what l claim as new and desire to secure by Letters Patent is:

l. ill tooth-rest comprising a member, said member being formed with a thinner resilient portion intermediate its ends and an end adapted to serve as a tooth-rest, and means tor adjustably mounting said support on a machine tool.

l2; Ar tooth-rest comprising an arm, means for adjustably mounting' said arm on a machine tool, and a member mounted in said arm, said member being formed with a thinner resilient portion intermediate its ends and an end adapted to serve as a tooth-rest.

A; tootlrrest comprising an arm, means for adjustably mounting said arm on a machine tool, a member mounted in Said arm, said member being termed with a thinner resilient portion 'intermediate its 1 ends"I and` an end adapted to serve as a tooth-rest, and guides arranged to secure said member yaga-instlateralmov-ement.

4f. A tooth-rest 'comprising' an arm, means for adjustably mounting said arm on a mag chine tool, said armbeing bored, a member, said member being formed Witlra resilient 'portion intermediate-itsends andan end adapted to serve as a tootl i .rest, -one en d of` portion of; said; member; beingarranged t0 *morez inthe;v upperfpftionfof said bore, and guides arrangedy to 'secure' Said. member against lateral mvement.

'61; Aa. toothfrest comprising a supporting membervaucut away; resilientportion inter- Vmediate its ,\ends-, a bladevsecnredwto said support 'and'.means., for adj ustably mounting saidisupport. on a Ameehine tool.i

VZ. Al tooth restA comprising anirm, means foradjustably mounting saidarm on `a mavcinghie. tool, asupportmeuntedl in said arm,

@ries #,ehieaiatent, .inw-11eV febtained. for

said support being formed with a thinner resilient portion intermediate its ends, and

a blade secured to the free end oi2 said suport.

8. A tooth-rest comprising an arm, means for adjustably mounting said arm on a inachine tool, a resilient support mounted in said arm, a blade secured to said support, and guides arranged to secure said support and blade against lateral moif'ement.

9. A tooth-rest comprising an arm, means for adjustably mounting` said arm on a machine tool, said arm being bored, a support, said'support being provided with a resilient portion intermediateits ends, one end oi. said support beingv secured in the bore in the lower portion of said arm, and the upper portion of saidsupport being arranged to move inthe upper portion of said bore and a; blade secured to the free end of said arm.

10. A tooth-rest comprising an arm, means for adjustably mounting said arm on a machine tool, said arm being bored, a support, said support being provided with a resilient, portion intermediate its ends, one end oi said support being secured in the bore in the lower portion of said arm, and the upper portion of saidsupport being arranged to move in the upper portion of said bore, a blade secured to the free end of said arm7 and guides arranged to secure. said support .and blade against lateral movement.

HERMAN R. ISLER.

ve cents each,L by addressing the Commissioner of Patents Washington, D. C. 

